Liquid dispensing gun



p. D. GREGG f Filed Nov. 20, 195o ET AL' LIQUID DISPENSING GUN 5 Sheets-Sheet 1 9 Paul AL Smit/7 @MM/JW D. D. @Rr-:GG TAL 2,607,627 LIQUID DISPENSING GUN Aug. 19, 1952 :s sheets-sheet 2 Filed Nov. 20, 1950 mmm MGM@ www .E ,MW/fw y# B D. D. GREG@ Erm.,

' Aug. .'19, 1952 2,607,627"

' LIQID DIsPENsING G 'UjNk sheets-shut s Filed Nov. 20, 1950 8 ffl/U4 paa/ 'Mg/112m Patented ug. 1.9, 1952 2,607,627` LIQUID msrENsiNG GUN David LGregg and Paul N. Smith, Manseld,

Ohio, assignors to The Tappan Stove Company, VMansiield, Ohio, a corporation of Ohio v10 claims.

l This 'invention 'reia'ies'jiof's liquid dispensing gun-'for discharging and atomizing measured Vquantitiesof a volatile liquid from 'a' cartridge kor container., It is' 'especially adapted for dispens'- Y in gfa deodorant into ak kitchen for killing cooking odors, lbutfitfcanfbe used equally Well for YThe -gu'nis'designedfor use with a cartridge having "an atomizi'ng nozzle anda valve which is 'om-inedby depressing the nozzle. 'As long as the nozzle is held depressed the treatingliquid Iwill'fflzie forced 'out ofthe-nozzle by vapor' pre's- V'surei' ini' an atomized 'spray which quickly vaporit 'is discharged. With most devices 'for dispensing "liquidsi'f'rom cartridges of this char'- 'a'cterl'fthe tendency ist'o hold the dischargev control valvepen'too'longfwhich results-in a Wasteful use of the treating'liquid.- In order-to prevent thiswasteiuu'seoitreating liquid', We provide in our dispensing gun trigger actuated mecha- -nism'fl Which'will cau'sethe, discharge of only afpredetermined small' amount of liquid each time '-thetr'igger is operated. f' i Ourimpi"'oved vdispensing gun'co'mprises a case iri--Which the cartridge of treatingr liquid' is carried and a pivote'd cap which is normally locked in""cl'o'sed`-"pos'ition but which' may be unlocked and lswi'in'g-to "openpositionwhen it is desired to changefa-"ca-rtridge:v The cap'cazjries a-pivoted trigger and trigger actuated mecha'r'iism which is operative to quickly depress the cartridge -nozzle ax'ed amount `v'andthenrelease it each time the trigger isfactuated.y The trigger is designed to be qicklyfactuated and then released but it may 'be-"held in Aactuated position any length o'f-time Without affecting the amount of treating liquiddischarged fromthe cartridge. Spring means returns the--trigger to'norm'al position when it 'is released after each actuation.

'-The principal object' of l the invention is to provide avery' simple, v"eiiicient and inexpensive device for 'dispensing predetermined amounts of treating liquidiffrom a cartridge' having a discharge nozzle f andi 'a 'valve which' is Aopened by depressing thefnozzle. A'

-Another'object of the invention is toprovide i'''aA-dev-ice of this characterhmeans by which the amount of liquid discharged by each actuation Vof the rdevice can be varied as desired. Other-andmore limited Vobjects of the inventionwill be'f'apparent from the following-speci- I'lcation-fandithe accompanying 'drawings'. fvo'rming fa'par-t'thereoflwherein: Y i -*I"ig.''is aside elevation oi' adispensing gun.-

`moved Vfrom the cap;

j Application'novsmber 20,1950, seriaiNo. 196,667 f Y I constructed according 'to our invention, showing itin .normal 'inoperative position; f Y i Fig. 2 isa topplan View of the gun as shown in Fig. 1;

Fig. 3 is a view similar to Fig. 1 showingihe 'trigger in actuated position; Y

` Fig. 4 is a'view similar io rig.r 1 showing the lcap swung'to open position to permit access vto the cartridge; v

Fig. 5 is Ian enlarged central vertical section,

taken on the line 5-5 of Fig.,3;Y

- Fig. 6 is a vertical-section, taken on :the line i Fig. 7.is a horizontal section, taken on the line '1 -'i of Fig. 5;

Fig. Sis a bottom plan view of the triggerre- Fig'. 9` is a horizontal section--on the scale of Figs.'A 1` to'4,.-taken on the line 9-9 of Figs. 1 nd5; Fig. l0 is a View similar to Fig. 5 showing the triggerin actuatedA positionf f.

Fig. 111 is a Viewk similar to Fig.' 5Y showing a slightly modified form of the deviceyf l.' Fig. 12` is "a fragmentary horizontal section, taken on the line l2-I2 .of Fig. 11;'. .A Fig. V13 is -a fragmentary horizontal section', taken on the line: I3'-.I3 of Fig. y14;'and Fig. 14 is a fragmentary vertical section, Ytaken on the line' I4-I4 ofFig. 11." Y VReferringfnow to the drawings by reference characters, the numeral l vindicates generally our improved dispensing gun, and.l the.v numeralV 2 indicates a cartridge vin which the treating liquid toV be dispensed bythe gun I iscontained under vaporpressure. The cartridge 2` comprises a cylindrical containers having a reduced upper end Ywhich is closed by a cap 4; A normally closed valve 5 having a'nozzle 6 with an axial atomizing discharge opening 'l' are suitably mounted in the cap '4. The valvef' is'yieldingly biased to closed position and is openedy by depressing fthe*` nozzle 6V and will remain open as long asthe Vnozzle is depressed. The valve Sis of 'I standard Well knowny construction and v'is manufactured' by ,various diierent concerns.' Consequently itisnot shown and described in detail.` herein. As long as the va1ve5 lis open liquid Will be forced out the discharge opening 1--byvapor pressure ina finely atomized spray. As soon as the'nozzle t is released. the 'valve 5 will automatically close and stop' the Adischarge 0f liquid.Y Y

' 'The 'dispensinggunl I :comprises a case 'B'an'd' a closure cap '9 which" is pivotall'y secured by-ay I3 and I4 therein. A cartridge 2 from which treating liquidiis to be dispensed is contained in the cavity I3 `and a spare cartridge 2 is contained in the cavity I4. An adjusting screw I5 which extends up through the bottom of the case 8 into the cavity I3 is providedin order to. adjust the position of the cartridge 2 inv the'V cavity I3 with respect to the cap 9.' A spring I6 disposed about the reduced upper end of the cartridge 2 maintains the cartridge in the cavity I3 against the adjusting screw I5. After a cartridge in the cavity I3 has been exhausted the latching mechanism I2 is operated to release the..

cap 9 and then the cap 9 is swung to the posi- -tiQnLshownfin Figa. The exhausted cartridge can then be removed-fromthe cavity I3 and a fresh cartridge, inserted therein, after which the cap 9 is closed and the gunris ready'for Yuse The cap 9 comprises a base I'Igand a pair of spaced parallel upwardly extendingside walls I8 therear sections of which arek inclined downwardly as shown at I9. The base I1 has an aperture 2,0- therethrough in axial alignment with vthe cavity I3 through which the nozzle 8 of the srartridgeV in ythe, cavity I3 extends, and is cut away between the side walls I8 atkthe rearend thereof as shown at 2| to accommodate the boss II.

The latching mechanismv I2 comprisesv a slide bolt 22 which is slidably mounted in arecess23 'in the top of the cap base I1, and a stud 24 vwhich is carried by theY case 8 and extends up through an aperture 25 in the base I1 under the4 slide @1151,22 and an; aperture 26m rthe slidel locltA 22 which is of largerdiameter than, the stud 24. stud 1243has a notch' 21 near the upper end thereof intorwhich the slidebolt 22 is normally urged; by a pairof springs, 2B.l which are seated in recesses 29,111 the forwardendV of the baseI andibear against thevv inner faceof the downturned ou-ter end 30 of the' slide -bolt 22. To unlockthecapt Vthewslide bolt 22 is, Vpressed inwardly against the pressure of the springs 28 untlthe slide bolt leaves. the notch 2,11 in the Stud 24;. The cap can Vthen be swung upwardly about; the. pivot pin I04 to openl position.

'A trigger-which is generally indicated byV the numeral is. pivotally mounted between the sidewalls |38 of the cap; 9` upon a pivot: pin/36:. The trigger 3,5 comprises ay top` 3 1-,v twov spaced downwardly extending side walls 3.8 and aV rela.- tively thick end wall 39 which extends between the side walls 38v at, the forwardl end of` the trigger. The side walls 38 slope upwardly from the end wall 35i` to the rear endsr thereof, as indicated at 40, to permitr the trigger to be rocked on the pivot pin 36. An outwardlyfflaring frustoconical aperture 4I vdisposed in axial alignment with...the cavity I3 andfaperture vlli-.e'x-taerrds throughaboss A42 which .projects downwardly from the inner face of the trigger; top 3,1. A bare-43 having'aA reduced extension 44 is formed ingthe en d 3,5; of the trigger 315;. A dog 45` which haszatanered;outerend. a iattenediuppersurface endaaxrenlarged; base is slidably mountedzin the bores 43 and 44, and is normally urged-out-v ward1y-^bya spring Yin the: bore, 43;.4 Thermessnre, o fi the spring' 46 'marche ediusted. by: a

in Fig. 5.

threaded plug 41 in the outer end of the bore 43. A relatively thin flat leaf spring arm 50 has one end thereof fastened to a boss 5I which extends upwardly from the rear end of the base I1 of the cap 9 by a large headed screw 52. The free end of the spring arm 50 extends straight forwardly from the boss 5I between the upper end of the cartridge vnozzle '6 and the lower end of the aperture-4l and thenupwardly and forwardly over the dog 45 as shown at 53 The spring 58 has an aperture 54 Ytherethrough which is of lesser diameter than 'the nozzle 6 of the cartridge and is disposed in 'axial alignment with` the cavity I3 and the apertures 20and'4I.

Tor releasea predetermined amount of liquid in 4an atomized spray from the cartridge 2, it is only necessary to depress the rear end of the trigger 35. downwardly from the position shown in Figs. 1 and 5 to the position shown in Figs. Thel depressir-igV of the rear endI of the trigger 35 raises the forwardI Vend thereof. Ast the, forw-ard.end ofr the trigger moves upfwardly the dogV 45 Aiiexesfthe spring` 150 by carry-.- ing the free'end-thereofup tothe position., shown inlig.V l0. At thisfpositionythe; en d of the: Spring Y5.0 slides off of the dog 45 and-snaps downwardly past the at rest position shown in sub'- stantially thesamedistance-it hadv been yraised above the normal at rest position by theactuae tion of the trigger-v 35.r Qn'itsfdownwardmovefment' the .Serine momentarily eusagesand vv.de- .presseslthe cartridge nozzlef and;- thenY releases it.. as thel spring thenr returns to-.it.s normal; at restlposition. Y opens the valve 5-which allows-an atomized Spray 0f liquid to be proiectedfby veporfpressure the cartfzdew Out: through thefaperture in the: spring, --'iand. the aperture 41;: ift-the trigger-I The distance.; JD.he nozzle-,Ii -is-moved downwardly determines the amount-'of liquid dispensed a-t Aeach actuation of' -thetr-iggger.-35;y it"` being understood that: Avthe furtherv the: nozzle 6 is depressed beforefitisfreleasedthelongerthe valve 5-.wi-llremain open. --Ifhis :amountcan-be varied' by adjustingfthefscrew `I5; to; position. the .t0n -Of the nnozzlel seither deserto Vor .farther away from fthe. .spring-5w in its normaler-rest posi-tion. Afterthe vtrigger-- 35 has been actuated it .is-released andesprinssfi return it tof its original position. ,l v 'A Y In VFi-gs. 1-,1y to ifi, inclusiva-we have shown@ slightlymodiiied form off-"theev :ventiomf :In: this formi 0f; the-intention the-wsnrfine-pressedf des 45 `whichengages the Aend Vof thesprmgfarm 5I) and flexes it asthe trigger-` 35 -is actuated has been replacedby -afs1ight1y-diierentmechanism. Otherwise vthe -constructionfof theff'gunyisthe sameas that shown invliligs, -1 tcfg10-inc-lusive and thef-same 1' yreference Ycharactersll are ens 1e@ to like parts '-thetwo; forms..`r Referring nov/:in detail to Figs..y 11 to lds-,theV end;39-offthe ytrier-er 3 5 is slotted 1 as indicated@at-.fIiI-i.fandfextends clown vinto; va notch :the .for-ward. ende ,ofi the base -I;1,- ofV theE cap- 9, asfshowin-at 450.; when- .thev trigger 35 is in normal at restfpesigtigon, Alatch 6.2 having; an outward extension -63 sri-totally mounted inthe slot tlf Ona pivot pin# 64. -Afleaf spring- 65. normally urges: the upper fendt-0f: the latchfzwmwardlyfunder the'ff-ree ,ends of the springg ar-mf-SIII. A threadedstudyhavingahead The depressing of: the :pazzie -16 fwhchfthe. extension 63. engageswhenrthe trigger Sillas been aetuateda suieen ennountAv -The engagementof the extension, with abutment 66 rocks the latch 672 on its pivot 6*4, andwithdraws the rupper endof the latch from under-:the end; of the springA arm 50's' The Spring. arm-15.0 then snaps downwardly..andi-emettethe ,dise charge of liquid from the cartridge 2 aspre:-v viously described,4` The relativejzpositionof the abutmentL Gti` and the extension, 6i-determines the amount ,the, spring arm 50 'Awi11 .be exed beforeit is- .releasecl, and the amount ,the spring arm t tillv -isjlexed before release Y determines. the amount. of: liquid discharged from the cartridge at eachA actuation4 of ,the y, trigger 315 If a lesser discharge is desired the abutment lshnould'be adjusted downwardly nand if a greater discharge is desired--itfshouldjbe adjusted upwardly. The flattened sides 61 engaging the side walls of the slot 6I maintain ,the kvabutment "in adjusted position.

From the foregoing it will be'kapparentto those skilled in this art that we have'provided a very simple and efficient mechanismv for accomplishing the objects of our invention. g

It is to lbe understood that we are not limited to the specific constructions shown and described as various modifications may be made therein within the scope of the appended claims.

What is claimed is:

l. A fluid dispensing gun comprising a case adapted to hold a cartridge containing fluid under vapor pressure, a cap normally closing said case, mechanism carried by said cap which is operative when actuated to effect the discharge of a predetermined fraction of the duid contents of a cartridge in said case, a trigger carried by said cap, and interconnecting means between said mechanism and said trigger through which said mechanism is actuated by said trigger.

2. A fluid dispensing gun comprising a case adapted to hold a cartridge containing fluid under vapor pressure, a cap normally closing said case, mechanism carried by said cap which is operative when actuated to effect the discharge of a predetermined fraction of the ud contents of a cartridge in said case, a trigger carried by said cap, interconnecting rmeans between said mechanism and said trigger through which said mechanism is actuated by said triggenand adjusting means by which the amount of fluid discharged from a cartridge in said case by each actuation of said mechanism may be varied.

3. A huid dispensing gun comprising acase, a cavity in said case adapted to hold a cartridge containing fluid under vapor pressure, a cap normally closing the upper end of said cavity pivotally secured to said case, releasable latching means normally holding said cap in closing position, mechanism carried by said cap which is operative when actuated to effect the discharge of a predetermined fraction of the fluid contents 6 a ,predetermined fraction. ,ofI ,the ifluid .contents of a cartridge in saidcavity, a triggerrfpiyotally mounted on Said oeps interengaginggmeans; bef. tween said mechanism and said triggerthrough whiohsad mechanism is actuated, bvfsaid,trig-` ger, fand aligned aperturesink said cap and said trigger through Ywhich fluid-y from a Vcartridgein said cavity is dischargedwhen said mechanism-is actuated. by said trigger., v i 5.--A fluid ,dispensing` gun llc,Omprising- ,ajcase adapted toy hold acartridge containing.flud under vaporpressure, a cap normally closing@ said case, a ltrigger pivotallyxmounted on. said cap, an elongated leaf spring r4arm havingone-.end thereof rigidly'secured tosaid cap, interengaging means ,between said trigger andthefree'end of said spring arm vthrough whichsaid'spring, arm is flexed and then freleasedwhensaid trigger "is, actuated; said spring arm being operative when eXedl and ,releasedl to effeotfthe; discharge-ot f. a predetermined .fraction ofitheiuid contentent a cartridge infsaridcase. Y 6. A duid dispensinggun co prising a .case adapted to nolda, cartridge. oontetiriirigA uid under vapor pressure, a cannormally closing-seid case; a trigger -pivotallr mounted- .on Saidf cap; an elongatedleaf spring arm having cnefend" thereof rigidly secured to said cap, interengaging means between said trigger and the free end of said spring arm through which said spring arm is flexed a predetermined amount and then released each time said trigger isvactuated, said spring arm being operative when iiexed and re leased to effect the discharge of a predetermined fraction of the fluid contents of a cartridge in said case, and adjusting means by which the amount said spring arm is exed before it is released may be varied.

7. A fluid dispensing gun comprising a case adapted to hold a cartridge containing fluid under vapor pressure, a cap normally closing said case, a trigger pivotally mounted on said cap, an elongated leaf spring arm having one end thereof rigidly secured to said cap, interengaging means between said trigger and the free end of said spring arm through which said spring arm is flexed and then released when said trigger is actuated, aligned apertures in said cap said spring arm and said trigger, said spring arm of a cartridge in said cavity, a trigger pivotally being operative when iiexed and released to effect the discharge through said apertures of a predetermined-fraction of the fluid contents of a cartridge in said case.

8. A fluid dispensing gun comprising a case adapted to hold a cartridge containing fluid under vapor pressure, a cap normally closing said case, a trigger pivotally mounted on said cap, an elongated leaf spring arm shaving one end thereof rigidly secured to said cap, interengaging means between said trigger and the free end of said spring arm through which said spring arm is flexed and then released when said trigger is'actuated, aligned apertures in said cap said spring arm and said trigger, said spring arm being operative when exed and released to effect the discharge through said apertures of a predetermined fraction of the fluid contents of a cartridge in said case, and means by which the position of a cartridge in said case may be adjusted with respect to said spring arm to vary the amount of uid discharged by each actuation of said trigger.

9. A uid dispensing gun comprising a case, a f

cavity in said case adapted to hold a cartridge containing uid under vapor pressure, a cap nor ger 'pivotally A secured -to -saidf-caspf-spring imefns' rigidly secured -to'sewiidr adp,V intereng'agiig means between' said '-ti'iggerld and -lthe free end of Vfsaiid' byvsidltrigger' andspringipressed .intolnggement? with the: underside ofiih'e'fre'e ed of said spring armyan'utward extension carried "by fsaid Iic'hfand lam f abutment Aa,djusibly'Y secured to said as'i-in 'position to' beengaged`bysaid exten- 'sione-ndoperative` ifo-'trip "said latch to' rele'se -UNLTED- STAES PATENTS 

